--- courier-0.78.2.orig/courier/configure.ac	2010-01-09 22:13:40.000000000 +0100
+++ courier-0.78.2/courier/configure.ac	2010-05-08 23:31:10.355976183 +0200
@@ -480,6 +480,12 @@
 eval "datarootdir=$datarootdir"
 eval "bindir=$bindir"
 eval "localstatedir=$localstatedir"
+eval "datadir=$datadir"
+
+AC_ARG_WITH(certsdir, [ --with-certsdir Directory where certs are created ],
+certsdir="$withval", certsdir=$datadir)
+
+AC_SUBST(certsdir)
 
 MAILDROP="$bindir/maildrop"
 AC_SUBST(MAILDROP)
--- courier-0.78.2.orig/courier/imapd-ssl.rc.in	2010-05-08 23:30:54.599915374 +0200
+++ courier-0.78.2/courier/imapd-ssl.rc.in	2010-05-08 23:31:10.355976183 +0200
@@ -28,6 +28,11 @@
 
 case $1 in
 start)
+        # If we do not have a certificate, make one up.
+        if [ ! -f @certsdir@/imapd.pem ]; then
+        @sbindir@/mkimapdcert
+        fi
+
 	umask $IMAP_UMASK
 	@ULIMIT@ $IMAP_ULIMITD
 	@SETENV@ -i @SHELL@ -c " set -a ;
--- courier-0.78.2.orig/courier/module.esmtp/configure.ac	2008-07-12 22:17:24.000000000 +0200
+++ courier-0.78.2/courier/module.esmtp/configure.ac	2010-05-08 23:31:10.355976183 +0200
@@ -287,6 +287,11 @@
 AC_SUBST(mydatadir)   # Quell automake warning
 
 
+AC_ARG_WITH(certsdir, [  --with-certsdir Directory where certs are created ],
+certsdir="$withval", certsdir=$datadir)
+
+AC_SUBST(certsdir)
+
 dnl
 dnl  Check what libraries are available
 dnl
--- courier-0.78.2.orig/courier/module.esmtp/esmtpd.dist.in	2010-02-02 23:30:00.000000000 +0100
+++ courier-0.78.2/courier/module.esmtp/esmtpd.dist.in	2010-05-08 23:31:10.355976183 +0200
@@ -242,7 +242,7 @@
 #
 # This is an experimental feature.
 
-TLS_CERTFILE=@mydatadir@/esmtpd.pem
+TLS_CERTFILE=@certsdir@/esmtpd.pem
 
 ##NAME: TLS_TRUSTCERTS:0
 #
--- courier-0.78.2.orig/courier/module.esmtp/esmtpd-ssl.dist.in	2010-02-02 23:30:00.000000000 +0100
+++ courier-0.78.2/courier/module.esmtp/esmtpd-ssl.dist.in	2010-05-08 23:31:10.355976183 +0200
@@ -269,7 +269,7 @@
 #
 # This is an experimental feature.
 
-TLS_CERTFILE=@mydatadir@/esmtpd.pem
+TLS_CERTFILE=@certsdir@/esmtpd.pem
 
 ##NAME: TLS_TRUSTCERTS:0
 #
--- courier-0.78.2.orig/courier/module.esmtp/esmtpd-ssl.in	2010-05-08 23:30:54.612778263 +0200
+++ courier-0.78.2/courier/module.esmtp/esmtpd-ssl.in	2010-05-08 23:31:10.355976183 +0200
@@ -25,6 +25,10 @@
 
 case $1 in
 start)
+	# If we do not have a certificate, make one up.
+	if [ ! -f @certsdir@/esmtpd.pem ]; then
+	@sbindir@/mkesmtpdcert
+	fi
 	;;
 stop)
 	${sbindir}/couriertcpd -pid=$SSLPIDFILE -stop
--- courier-0.78.2/courier/module.esmtp/mkesmtpdcert.in.orig	2018-03-25 10:15:59.986631408 +0200
+++ courier-0.78.2/courier/module.esmtp/mkesmtpdcert.in	2018-03-25 11:27:37.983248999 +0200
@@ -11,7 +11,7 @@
 PEMFILE="$1"
 
 if [ -z "$PEMFILE" ]; then
-	PEMFILE=@mydatadir@/esmtpd.pem
+	PEMFILE=@certsdir@/esmtpd.pem
 fi
 
 if test "@ssllib@" = "openssl"
@@ -35,7 +35,7 @@
 	exit 1
 }
 
-cd @mydatadir@
+cd @certsdir@
 umask 077
 BITS="$BITS"
 set -e
@@ -50,7 +50,7 @@
 		  -config @sysconfdir@/esmtpd.cnf -out "$PEMFILE" -keyout "$PEMFILE" || cleanup
 	@OPENSSL@ dhparam -2 -rand "$PEMFILE".rand 512 >>"$PEMFILE" || cleanup
 	@OPENSSL@ x509 -subject -dates -fingerprint -noout -in "$PEMFILE" || cleanup
-	rm -f @mydatadir@/esmtpd.rand
+	rm -f @certsdir@/esmtpd.rand
 else
 	if test "$BITS" = ""
 	then
--- courier-0.78.2.orig/courier/pop3d-ssl.in	2010-05-08 23:30:54.612778263 +0200
+++ courier-0.78.2/courier/pop3d-ssl.in	2010-05-08 23:31:10.355976183 +0200
@@ -29,6 +29,11 @@
 
 case $1 in
 start)
+        # If we do not have a certificate, make one up.
+        if [ ! -f @certsdir@/pop3d.pem ]; then
+        @sbindir@/mkpop3dcert
+        fi
+
 	exec @SETENV@ -i PATH="$PATH" SHELL="$SHELL" \
 		@SHELL@ -c " set -a ; \
 		prefix=@prefix@ ; \
--- courier-0.78.2.orig/courier.sysvinit.in	2010-05-08 23:30:54.612778263 +0200
+++ courier-0.78.2/courier.sysvinit.in	2010-05-08 23:31:10.355976183 +0200
@@ -18,7 +18,7 @@
 sbindir="@sbindir@"
 bindir="@bindir@"
 libexecdir="@libexecdir@"
-datadir="@datadir@"
+certsdir="@certsdir@"
 
 if test ! -f ${sysconfdir}/esmtpd
 then
@@ -85,7 +85,7 @@
 	then
 # If we do not have a certificate, make one up.
 
-		if test ! -f ${datadir}/esmtpd.pem
+		if test ! -f ${certsdir}/esmtpd.pem
 		then
 			if test -x $COURIERTLS
 			then
@@ -152,7 +152,7 @@
 			then
 # If we do not have a certificate, make one up.
 
-				if test ! -f ${datadir}/pop3d.pem
+				if test ! -f ${certsdir}/pop3d.pem
 				then
 					echo -n " generating-POP3-SSL-certificate..."
 
@@ -182,7 +182,7 @@
 			then
 # If we do not have a certificate, make one up.
 
-				if test ! -f ${datadir}/imapd.pem
+				if test ! -f ${certsdir}/imapd.pem
 				then
 					echo -n " generating-IMAP-SSL-certificate..."